So this just started happening two days ago with my Roamio Plus. Every now and then (maybe once an hour) my audio drops out. If I push the tivo button or change channels the audio comes back. Audio is set to Dolby Digital. The Roamio is connected with HDMI to my Pioneer receiver and then HDMI to my tv. Anybody else have this problem or know how to fix it?

Using DD 5.1 the audio drops every time you go into or leave Tivo Central. It is extremely annoying. I believe it is due to the remote sounds the Tivo makes, but since it is DD 5.1 it has no way to insert the sounds. I have learned to live with it.